A high-quality anime illustration featuring a surreal and ethereal composition of a translucent jellyfish and a delicate butterfly, captured in a medium shot with a centered composition. A glowing, bioluminescent jellyfish floats gracefully in the center, its long, flowing tentacles trailing downwards like silken ribbons, while a vibrant, intricately patterned butterfly hovers just above it, its wings slightly fluttering. The background is a deep, dark oceanic void that merges seamlessly with a starry night sky, creating a dreamlike spatial ambiguity. The lighting is dominated by the soft, luminous glow emanating from the jellyfish, casting shimmering iridescent light and casting a gentle blue and purple radiance across the butterfly's wings. The color palette consists of deep navy, neon cyan, and vivid violet, with floating particles and tiny bubbles resembling stars, evoking a serene, mystical, and otherworldly atmosphere.